A lonely boy named Radish Rademacher hopes to become a member of his twin sister's detective agency after showing the members an old treasure map he found in a cave.

Traditional Chinese edition of a German children's novel "4 1/2 Friends and the Secret Cave." Four school friends play detectives to little mysteries and make them out to be fantastic and comical mysteries. In Traditional Chinese. Distributed by Tsai Fong Books, Inc.

Book 1- We only have three minutes to make the biggest decision of our lives. Do we launch a vessel to save our creatures or keep it to try and save ourselves. The beings trying to take over our planet will kill all the creatures because they are different. Our hands are sweating and hearts beating, ten, nine, eight.... Book 2-I took the silver key and with my hand shaking pushed it in the keyhole. My hand froze. How did I get to the door from just visiting a cave. My only child will be going further than anyone on planet Earth has ever been. I turned the key and pushed open the door.

Recounts the true story of how four boys looking for buried treasure in the south of France in 1940 stumbled upon something much more valuable--a sealed cave whose walls were covered with prehistoric paintings and engravings.

Puzzles accompany the story of Mrs. Jeepers' class on an exploration of Ruby Cave.

For ten-year-old Jonathan, his friend Jessie, and Dr. park, it was supposed to be a quick trip to the hidden cave. That's when the lights went out and Dr. Park disappeared, leaving Johathan and Jessie lost deep in the heart of the cavern.

Another delightful installment in the internationally acclaimed series: It's spring in St. Denis. The village choir is preparing for its Easter concert, the wildflowers are blooming, and among the lazy whorls of the river a dead woman is found floating in a boat. This means another case for Bruno, the town’s cherished chief of police. With the discovery of sinister markings and black candles near the body, it seems to Bruno that the occult might be involved. And as questions mount—most notably about a troubling real estate proposal in the region and the sudden reappearance of an elderly countess—Bruno and his colleagues are drawn ever closer to a climactic showdown in the Gouffre de Colombac: the place locals call the Devil’s Cave.

Lost Island was off limits -- until now. Jeff and David are going to the desert island to search for clues. And hidden treasure! Town legend tells of a robber and a secret cave, but the brothers have to piece the truth together. With the help of their cousin, Claire, they'll get to the bottom of the mystery, no matter what they have to dig up.

A hidden door. A magical staircase. Discover the world of Droon! There's no place like home! Eric and his friends have finally restored the Rainbow Stairs, but that was the easy part. Now Gethwing is loose in the Upper World, and the Moon Dragon is causing big trouble. Eric, Julie, and Neal have to protect their town, but they're up against mysterious creatures, strangely-behaving parents, and powerful magic. Can the kids stop Gethwing before he destroys the Upper World -- for good?

Designed to be used by children in their first six months of school PM Starters One and Two